Evaluation of Global Reanalysis Winds and High Resolution Regional Model Outputs with the 205 MHz Stratosphere‐Troposphere Wind Profiler Radar Observations

2021 ◽  
Author(s):  
C. Sivan ◽  
V. Rakesh ◽  
S. Abhilash ◽  
K. Mohanakumar
Keyword(s):  
High Resolution ◽  
Regional Model ◽  
Wind Profiler ◽  
Radar Observations ◽  
Wind Profiler Radar ◽  
Global Reanalysis

Combining Microwave Radiometer and Wind Profiler Radar Measurements for High-Resolution Atmospheric Humidity Profiling

2005 ◽  
Vol 22 (7) ◽  
pp. 949-965 ◽  
Author(s):  
Laura Bianco ◽  
Domenico Cimini ◽  
Frank S. Marzano ◽  
Randolph Ware
Keyword(s):  
High Resolution ◽  
Microwave Radiometer ◽  
Potential Temperature ◽  
Physical Method ◽  
Wind Profiler ◽  
Tropospheric Temperature ◽  
Atmospheric Humidity ◽  
Wind Profiler Radar ◽  
Combined Algorithm ◽  
Humidity Profiles

Abstract A self-consistent remote sensing physical method to retrieve atmospheric humidity high-resolution profiles by synergetic use of a microwave radiometer profiler (MWRP) and wind profiler radar (WPR) is illustrated. The proposed technique is based on the processing of WPR data for estimating the potential refractivity gradient profiles and their optimal combination with MWRP estimates of potential temperature profiles in order to fully retrieve humidity gradient profiles. The combined algorithm makes use of recent developments in WPR signal processing, computing the zeroth-, first-, and second-order moments of WPR Doppler spectra via a fuzzy logic method, which provides quality control of radar data in the spectral domain. On the other hand, the application of neural network to brightness temperatures, measured by a multichannel MWRP, can provide continuous estimates of tropospheric temperature and humidity profiles. Performance of the combined algorithm in retrieving humidity profiles is compared with simultaneous in situ radiosonde observations (raob’s). The empirical sets of WPR and MWRP data were collected at the Atmospheric Radiation Measurement (ARM) Program’s Southern Great Plains (SGP) site. Combined microwave radiometer and wind profiler measurements show encouraging results and significantly improve the spatial vertical resolution of atmospheric humidity profiles. Finally, some of the limitations found in the use of this technique and possible future improvements are also discussed.

Assessment of wind energy potential over India using high-resolution global reanalysis data

2021 ◽  
Vol 130 (2) ◽  
Author(s):  
China Satyanarayana Gubbala ◽  
Venkata Bhaskar Rao Dodla ◽  
Srinivas Desamsetti
Keyword(s):  
High Resolution ◽  
Wind Energy ◽  
Reanalysis Data ◽  
Energy Potential ◽  
Wind Energy Potential ◽  
Global Reanalysis

scholarly journals Aspects of quality control of wind profiler measurements in complex topography

2014 ◽  
Vol 7 (1) ◽  
pp. 135-148 ◽  
Author(s):  
M. Maruri ◽  
J. A. Romo ◽  
L. Gomez
Keyword(s):  
Complex Terrain ◽  
Meteorological Conditions ◽  
Complex Signal ◽  
Wind Profiler ◽  
Complex Topography ◽  
Homogeneity Study ◽  
Homogeneity Assumption ◽  
Patterns Of Behavior ◽  
Wind Profiler Radar ◽  
Wind Profiles

Abstract. It is well known in the scientific community that some remote sensing instruments assume that sample volumes present homogeneous conditions within a defined meteorological profile. At complex topographic sites and under extreme meteorological conditions, this assumption may be fallible depending on the site, and it is more likely to fail in the lower layers of the atmosphere. This piece of work tests the homogeneity of the wind field over a boundary layer wind profiler radar located in complex terrain on the coast under different meteorological conditions. The results reveal the qualitative importance of being aware of deviations in this homogeneity assumption and evaluate its effect on the final product. Patterns of behavior in data have been identified in order to simplify the analysis of the complex signal registered. The quality information obtained from the homogeneity study under different meteorological conditions provides useful indicators for the best alternatives the system can offer to build wind profiles. Finally, the results are also to be considered in order to integrate them in a quality algorithm implemented at the product level.

scholarly journals Lower Atmospheric Wind Dynamics as Measured by the 1290 MHz Wind Profiler Radar Located at Cardington (Lat. 52.10ºN, Long. 0.42ºE), UK and Their Comparisons with Near-by Radiosonde Instrument

2020 ◽  
pp. 22-35
Author(s):  
M. Satyavani ◽  
P. S. Brahmanandam ◽  
P. S. V. Subba Rao ◽  
M. P. Rao
Keyword(s):  
Remote Sensing ◽  
Boundary Layer ◽  
Wind Speed ◽  
Universal Time ◽  
Diurnal Variations ◽  
Wind Profiler ◽  
Independent Observations ◽  
Wind Profiler Radar

This study reports diurnal variations of wind directions, wind speed of vector winds, and the evolution of boundary layer (BL) over a mid-latitude measured using a transportable 1290 MHz wind profiling radar located at Cardington (Lat. 52.10ºN; Long. 0.42ºE), Bedfordshire, UK from 17 to 28 April 2010. The horizontal winds show benign behavior during nighttime hours, while winds during daytime hours had magnitudes around, on average, 10-20 m/s, in the majority of the cases. The heights of the boundary layer (BL) varied from as low as ~1100 m to ~2600 km and BL height had shown to have evolved from 0700 universal time (UT) onwards and collapsed by 0000 UT.  Besides, a comparison made between winds measured by the 1290 MHz radar and near-by radiosonde showed a moderate similitude between them, albeit a few discrepancies are found in wind directions and speeds. The possible reasons for these discrepancies could be different volume sensing of observations of these independent observations. An attempt is, therefore, made to calculate radiosonde balloon drifts [1] for the ascending node of the balloons, which had confirmed that the balloons often drifted horizontally as long as up to 100 km. The large drifts, most probably, are the possible reasons for the mismatching of winds measured by these two independent remote sensing instruments.

Climate Evaluation of a High-Resolution Regional Model over the Canary Current Upwelling System

2019 ◽  
pp. 240-252
Author(s):  
Ruben Vazquez ◽  
Ivan Parras-Berrocal ◽  
William Cabos ◽  
Dmitry V. Sein ◽  
Rafael Mañanes ◽  
...  
Keyword(s):  
High Resolution ◽  
Regional Model ◽  
Upwelling System

scholarly journals Analysis of urban rainfall from hourly to seasonal scales using high‐resolution radar observations in the Netherlands

2019 ◽  
Vol 40 (2) ◽  
pp. 822-840 ◽  
Author(s):  
Iris Manola ◽  
Gert‐Jan Steeneveld ◽  
Remko Uijlenhoet ◽  
Albert A. M. Holtslag
Keyword(s):  
High Resolution ◽  
The Netherlands ◽  
Radar Observations ◽  
High Resolution Radar
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